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Welp, pulled the trigger

 
Old 12-03-2018, 09:04 PM
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samwint77
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Default Welp, pulled the trigger

I just ordered the maggy heartbeat with the 3" pulley, texas speedway headers and x pipe. I have a local shop installing it when everything comes in. I have a 2017 grand sport. I can't wait to get this thing going. I'll post dyno numbers when its complete. I decided to go with the PD charger because I will only use the car as an everyday driver. I'll enjoy the instant torque, and it will have less parasitic loss during normal driving. It should run between 8 to 10 lbs of boost and be around 600 whp hopefully.
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Old 12-03-2018, 09:35 PM
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Awesome! Keep us posted.

Last edited by Steven Bell; 12-03-2018 at 10:32 PM.
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Old 12-04-2018, 09:36 AM
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Nice, good luck!! Post the numbers and install pics.
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Old 12-04-2018, 03:21 PM
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Good choice. What's the exact pulley size you're going with? 3" does not seem ideal for a stock engine as it will give you about 13 psi
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Old 12-05-2018, 04:46 PM
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Originally Posted by Corvette4ever View Post
Good choice. What's the exact pulley size you're going with? 3" does not seem ideal for a stock engine as it will give you about 13 psi
I was told the 3" will give me 8 to 10 psi. Do you know someone that had the 3"producing 13 psi? If it gets that high we'll get a bigger pulley. It still comes with the stock pulley. I'll give up HP to protect the motor. I believe due to the headers and x pipe being catless, it will drop the PSI a bit.
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Old 12-05-2018, 04:48 PM
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Originally Posted by BooSSted View Post
Nice, good luck!! Post the numbers and install pics.
Will do, hopefully all parts will be in by next week and we can get started.
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Old 12-05-2018, 05:56 PM
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Originally Posted by samwint77 View Post
Will do, hopefully all parts will be in by next week and we can get started.
wow next week would be awesome. I was told my order is 4-5 weeks out? I guess these are not ready off the shelf items
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Old 12-06-2018, 12:49 AM
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_______subscribed!
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Old 12-06-2018, 09:02 AM
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Originally Posted by samwint77 View Post
I was told the 3" will give me 8 to 10 psi. Do you know someone that had the 3"producing 13 psi? If it gets that high we'll get a bigger pulley. It still comes with the stock pulley. I'll give up HP to protect the motor. I believe due to the headers and x pipe being catless, it will drop the PSI a bit.
My heartbeat kit came with a 95mm (3.75") pulley. This gave about 7.5 psi with the stock engine/exhaust.

3" pulley is 76mm, check this post for reference https://www.corvetteforum.com/forums...post1594843195
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Old 12-10-2018, 01:44 PM
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Originally Posted by Corvette4ever View Post
My heartbeat kit came with a 95mm (3.75") pulley. This gave about 7.5 psi with the stock engine/exhaust.

3" pulley is 76mm, check this post for reference https://www.corvetteforum.com/forums...post1594843195
Thanks for the info, I'll be sure to discuss this with my tuner. I did call Magnuson and told me due to the headers and x pipe I couldn't use the stock pulley, but I didn't ask why. I'll be sure to post what comes out of this so others will know if they decided to go the maggy route.
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Old 12-14-2018, 01:46 PM
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A quick update, Got the headers and x pipe in monday. Still waiting for the maggy.
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Old 12-14-2018, 05:13 PM
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My 2300 was just delivered. I have a 2015 ZO6 so I ordered the upgrade supercharger kit with 80mm / 3.15 pulley. Should be close to 12 psi. Ill be installing the 95mm ZR1 TB.

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Old 12-15-2018, 02:35 PM
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Sub'd
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Old 12-21-2018, 02:00 AM
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Originally Posted by samwint77 View Post
I just ordered the maggy heartbeat with the 3" pulley, texas speedway headers and x pipe. I have a local shop installing it when everything comes in. I have a 2017 grand sport. I can't wait to get this thing going. I'll post dyno numbers when its complete. I decided to go with the PD charger because I will only use the car as an everyday driver. I'll enjoy the instant torque, and it will have less parasitic loss during normal driving. It should run between 8 to 10 lbs of boost and be around 600 whp hopefully.
Watching this thread. I have the same car and now thinking about the maggy..
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Old 12-21-2018, 02:29 PM
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Originally Posted by spinkick View Post
Watching this thread. I have the same car and now thinking about the maggy..
I just did a 2300 with port injection... It will be going on the dyno in a few hours.
I'll post up and let everyone know what it did later tonight or tomorrow.
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Old 12-21-2018, 02:34 PM
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Originally Posted by MCK_Z06 View Post
I just did a 2300 with port injection... It will be going on the dyno in a few hours.
I'll post up and let everyone know what it did later tonight or tomorrow.
z06? Sounds like you are going for some major power. 750-800whp?
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Old 12-21-2018, 02:53 PM
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Originally Posted by spinkick View Post
z06? Sounds like you are going for some major power. 750-800whp?
Yes, its a LT4/Z06.
I was a little over 750whp on E85 (E65 at the time of the tune/dyno) before the swap. (FBO/H/C/I & ported stock blower/snout, 103mm TB, port injection on stock blower, full flex-fuel setup, LG full cooling setup, etc.)
So this round is basically a blower swap only using the kit upper pulley that comes with the Magnuson and retaining the mods that were already in place.
I do have an 18% lower already on that will stay.

It will be interesting to see what it makes.
My goal was to build something close to 1000HP at the crank or a little less without having to use meth, with a full flex-fuel setup that will be somewhat reliable.
Im close, so hopefully this gets me a little closer.

Last edited by MCK_Z06; 12-21-2018 at 02:55 PM.
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Old 12-21-2018, 03:06 PM
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Sounds great. How do you like the LG cooling? Was it a bitch to install. Was considering it when I do a Maggie heartbeat on my grand sport.
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Old 12-21-2018, 03:30 PM
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Originally Posted by spinkick View Post
Sounds great. How do you like the LG cooling? Was it a bitch to install. Was considering it when I do a Maggie heartbeat on my grand sport.
The cooling kit works very well.
I actually had to dial the fan back a bit because on cooler days it took a bit to warm the engine and oil up.
Otherwise the temps are inline with my NA Z06 (minus the higher IAT's from the PD blower.)
170-180ect, 175-185eot, IAT's coming out of the blower are around 90-100deg. unless its 100+deg. and I'm beating on the car then I have seen it hit 150deg.

I actually live close to LG's HQ so I just had them install it, so it was easy.. lol!
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Old 12-25-2018, 10:31 PM
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samwint77
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Got the confirmation last week. My laggy should be shipped on the 28, and car will go in the first week of January. Getting a little excited....
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